7x+5*(x-3)-10x-x=20

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Solution for 7x+5*(x-3)-10x-x=20 equation:


Simplifying
7x + 5(x + -3) + -10x + -1x = 20

Reorder the terms:
7x + 5(-3 + x) + -10x + -1x = 20
7x + (-3 * 5 + x * 5) + -10x + -1x = 20
7x + (-15 + 5x) + -10x + -1x = 20

Reorder the terms:
-15 + 7x + 5x + -10x + -1x = 20

Combine like terms: 7x + 5x = 12x
-15 + 12x + -10x + -1x = 20

Combine like terms: 12x + -10x = 2x
-15 + 2x + -1x = 20

Combine like terms: 2x + -1x = 1x
-15 + 1x = 20

Solving
-15 + 1x = 20

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '15' to each side of the equation.
-15 + 15 + 1x = 20 + 15

Combine like terms: -15 + 15 = 0
0 + 1x = 20 + 15
1x = 20 + 15

Combine like terms: 20 + 15 = 35
1x = 35

Divide each side by '1'.
x = 35

Simplifying
x = 35

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